| DEASM浅水流模型对热力环流的非结构网格模拟 |
| |
| 引用本文： | 邢领航,严明,杨文俊,黄国兵.DEASM浅水流模型对热力环流的非结构网格模拟[J].长江科学院院报,2011,28(11):42-46. |
| |
| 作者姓名： | 邢领航 严明 杨文俊 黄国兵 |
| |
| 作者单位： | 1.长江科学院水力学研究所；2.河海大学环境科学与工程学院 |
| |
| 基金项目： | 国家重点基础研究发展计划“973”项目(2007CB714106); 水利行业专项研究(201001033); 中央级公益性科研院所基本科研业务费(YWF0905、CKSF2010011、CKSF2011013/SL) |
| |
| 摘 要： | 为提高热电厂的取水安全，缓解废热排放造成的环境污染，从全场精细数值模拟的角度，推导了水深平均意义下的通用显格式代数应力模型(DEASM)，数值离散方法采用SIMPLE程式下的非结构网格算法，并利用改进的QUICK格式来提高对流项模拟精度。该模型成功实现了对试验下的复杂热力浅水环流的精细模拟，结果表明模型模拟的热力浅水环流的断面流速分布、局部环流流线形态、环心位置、流线分离点以及温度场分布均与实测值吻合良好，初步表明该模型能够为统一描述浅水热力环流近区和远区问题提供一种更精细而通用的全场模式。
|
| 关 键 词： | 热力浅水环流 DEASM SIMPLE程式 非结构网格 |
Unstructured Simulation of Thermal and Shallow Circulation Flow Based on DEASM Model |
| |
| XING Ling-hang,YAN Ming,YANG Wen-jun,HUANG Guo-bing.Unstructured Simulation of Thermal and Shallow Circulation Flow Based on DEASM Model[J].Journal of Yangtze River Scientific Research Institute,2011,28(11):42-46. |
| |
| Authors: | XING Ling-hang YAN Ming YANG Wen-jun HUANG Guo-bing |
| |
| Affiliation: | 1.Yangtze River Scientific Research Institute, Wuhan 430010, China; 2.School of Environmental Science and Engineering, Hohai University, Nanjing 210098, China |
| |
| Abstract: | To improve the safety of water intake and alleviate the waste heat pollution from thermal power plants,a new depth-averaged turbulent model(DEASM) based on explicit algebraic Reynolds stress model is developed to describe the whole thermal shallow flow.The algorithm of the turbulent model is based on SIMPLE procedure and discretized on unstructured grid.QUICK scheme is modified to improve the precision of advective flux approximation.The numerical results show that the simulated data by the model are well c... |
| |
| Keywords: | thermal shallow circulation flow Depth-Averaged Explicit Algebraic Reynolds Stress Model(DEASM) SIMPLE procedure unstructured grids |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《长江科学院院报》浏览原始摘要信息 |
|
点击此处可从《长江科学院院报》下载全文 |
